the.com/boo
The smallest sound that can scare you or melt you, depending on context.
means An exclamation meant to startle, a noise of disapproval, or an affectionate term for a partner.
from From the 1700s, an imitation of a low, cattle-like bellow used to frighten; the romantic sense bloomed in 1990s American slang, possibly from the French beau, meaning beautiful.
Ghost stapleLong the default jump-scare for cartoon specters.
Crowd verdictBooing as protest dates back centuries.
Term of endearmentPet-name boo surged via hip-hop culture.